RPC error HTTP 413: batch_too_large

Last updated: October 24, 2026

At a glance

Cause

POST /rpc/robinhood accepts a JSON-RPC object or batch array with a total body size up to 4 MiB (4,194,304 bytes), whitespace included. The limit is identical for every API key and is independent of requests per second, so a large batch or a wide eth_getLogs filter can exceed it while your rate budget is untouched.

Solution

1. Split the batch into several smaller arrays and send them sequentially.
2. Remember that a batch of N requests costs N requests against the RPS budget, so splitting does not make it cheaper — it only fits the body limit.
3. For wide log queries, narrow the block range or the address/topic filter instead of growing the body.

Example

{
  "error": "batch_too_large"
}